Question about 2003 Buick Rendezvous

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Sometimes i can not start my 2003 buick rendezvous

Sometimes the car will not start. I need to wait 15 to 20 minutes and then it will start. What is wrong?

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The following are the general instructions on the start of diagnosing any electronically controlled engine or transmission problem.

The engine and the automatic transmission (transmission control is only for automatics, engine is still computer controlled no matter the transmission type) in this vehicle are computer controlled and in most cases when a fault occurs a fault code is stored in the memory of the computer control module. There are exception to this, such as the Mass Airflow Meter and fuel pressure problems. What must be done is to have all the basic testing done such as a scan of the system for fault codes as well as a check with a live data scanner tool for engine functions that are not within range of normal, a trained technician is required to know what is correct and what isn't, then based on careful diagnostics done from a factory repair manual the correct part is replaced or the wiring repaired or the computer replaced (known as the PCM or ECM,ECU), which is very rarely the problem. Other basic checks must be done as well such as mechanical problems with the engine as well as engine state of tune and mileage on the engine. The transmission can have mechanical issues as well such as no gear engagement at all or a failed pump or other pressure related problems. Also engine mechanical problems can and do cause many drive-ability related problem such as rough idle and other symptoms.

Posted on Dec 08, 2012

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: 2003 Buick Rendezvous ignition problem

seems crazy but it worked for us!!! try hammer and Wd 40 - tap lighty

Posted on Nov 30, 2008

  • 2920 Answers

SOURCE: Blower Motor

the blower motor is on the passenger side firewall. its the only motor in that area.it is held in by three screws and has one plug you unplug from it.you pull the old fan insert the new one put the screws bqack and plug it back in thats all there is to it

Posted on Jan 18, 2009

honeymokey
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SOURCE: 96 buick park avenue security light comes on car

Replace ing. lock cylinder and chip key.

Posted on May 17, 2009

  • 2 Answers

SOURCE: buick does not start when theft system comes on

I had the same problem with ours...

It ia a faulty ign switch lock (the sensor) > Expensive part >

Temp fix;

remove the cover underneath the steering column and locate the thin white flat (3) wire (runs from the ignition key lock down to a connector.

After starting the the car , dis-connect the connector under the dash that the Ign lock goes to , after that the car should start everytime.

You will need to replace the lock assy. if you want to fix this correctly ; I have been using ours for (6) months > no problem except the "Theft System " light stays on -

Posted on Jul 13, 2009

  • 1 Answer

SOURCE: 2002 buick rendezvous

My gas guage went from Empty to Full on its own and I never knew how much gas was in my vehicle. I was driving the other day and it stalled. Pulled into a parking lot let it sit a bit and it started right back up and I was able to drive again. Went to nearest gas station to put gas in. I put in $10 and I drove 3.4 miles and well it died on me again. I pushed the vehicle into my garage. I called around to see what could be wrong and I was told numerous things. I finally went under the vehicle where there is this clearish/white box under the Driverside area and I noticed it was corroded and dirty. I went in the house got a spray bottle with HOT WATER and sprayed it. I noticed that I had 3 prongs broke off. So I went to a local dealership for GM/Buick and I got the pins I needed to fix the problem and I went home fixed the broken pins and well now my vehicle works great and the vehicle runs great and gas guage problem was fixed as well. So for all of you that think you might have a fuel problem, fuel pump problem or gas guage problem check into the wire harness box under your vehicle and you will be able to fix it for Pennies instead of paying the $750 or more for something you cna fix at home. I love my Rendezvous and I would buy another one again.

Posted on Feb 14, 2010

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2003 Buick Rendezvous turning over, sometimes starts and sometimes won't, brand new battery?


How long since a tune-up? Check for applicable trouble codes. Some of the national brand auto stores will check codes for free.
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With intermittent issues, you have to test when problem is ongoing.

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